Textile bags



June 7, 1960 s. M. CORMAN ETAL 2,939,501

TEXTILE BAGS Filed June 5, 1956 F g.1. 2 2 1 W United States PatentO Thepresent invention relatesto fabricbags and, more particularly, to' bagsconstructed' from' textiles having the properties of burlap. M

The object of the present invention is to construct a uniquely strongand durable bag in an exceptionally simple and practicable manner from ablank of fabric having boundaries including a pair of opposed selvages,which are designed not to unravel, and a pair of opposed cuts, by whichthe blank is separated from the remainder of a bolt. Generally, this bagis constructed by folding the blank approximately midway between thecuts to form a pair of superposed plies, reversely bending at least onecut edge to form an outer flap, reversely bending at least the outerflap to form a lip extending between the outer flap and the remainder ofthe plies, stitching the lip and the flap to portions of the plies thatthey overlap, and stitching the lower selvedge portions of the plies toeach other, all the stitching being elfected in a continuous operation.

Other objects of the present invention 'will in part be obvious and willin part appear hereinafter.

The invention accordingly comprises the product possessing theconstruction, combination of elements and arrangement of parts which areexemplified, in the following detailed disclosure, and the scope ofwhich will be indicated in the appended claims; I

For a fuller understanding of the nature and objects of the presentinvention, reference should be had to the following detailed descriptiontaken in connection with the accompanying drawings wherein: t m

Figure 1 isa perspective view of a bag embodying the;

present invention;

Fig. 2v is a cross-sectional view of the bag of Fig. l,

taken along the line 2-2;

Fig. "3 is a fragmentary view of-a modification of the bag of Figs. 1and 2; V

Fig. 4 is a fragmentary view of another modification of the bag of Figs.1 and 2; and

2,939,501 Patented June 7, 1960 plies which they overlap. Two parallelrows of chainlock stitching 38 .and 40 extend without interruption alongcut portions 20 and Hand thelower peripheral portions of plies 12 and14. As shown in Fig. 2, a row of stitching 38 in sequence joins flaps 30and 32, lips 34 and theremainder of plies 12 and, and the row ofstitching .40 in se q'uence joins flaps 30 and 32 and the remainder ofplies 12 and 14 free of lips 34 to form a strong seam that will notunravel.

' "The modifications of Figs. 3 and 4 each comprise a pair of plies 42and 44 integrally joined and selvedged at .top andbottom like plies 12and 14 of Fig. l. Plies 42 and 44 have peripheral cut portions 46 and48.Cut

portion 46 is reversely bent once to form a flap 50. Cut portion 48isreversely bent twice to form a flap 52 and a lip 54.which receive flap50.

In the modification of Fig. 3 two parallel rows of stitching 56 and 58extend without interruption along peripheral cut portions 46 and 48 andthe lower peripheral portions of plies 42 and 44. Row of stitching 56,in sequence, joins flaps 52 and St the lip extending reversely from flap52 and the remainder of plies 42 and 44, and row of stitching 58 joinsflaps 52 and and the remainder of plies 42 and 44 free of the lipextending reversely from flap 52.

In the modification of Fig. 4, a single row of stitching 60 extendswithout interruption along peripheral cut portions 46 and 48 and thelower peripheral portions of plies 42 and 44. Stitching 60, in sequence,joins flaps 52 and 50, lip 54 and the remainder of plies 42 and 44.

In practice, continuous stitching along the peripheral cut portions andlower selvedges is effected with the aid of a pivoted guide of the typeshown at 62 in Fig. 5. Guide 62 comprises an arm 64 pivoted at 66 onwhich is mounted a chute havinga bed surface 68, an upper reversesurface 70 and a lower reverse surface 72 smoothly joined in the form ofa scroll which tapers convergently from front to rear so that surfaces68, 70 and 72 are more closely spaced at 74 than at 76. In operation,the peripheral cut edges of the blank for'the bag arefed through guide62, to a sewing head 78. At the moment the peripheral cut portions ofthe bag leave the guide, the guide is swung away from the sewing head,as shown in dotted lines, and the bag is rotated in its plane through anangle of approximately ninety degrees. Thereafter, stitching of thelower portions of g the bag .is continued without interruption. Finallythe Fig. 5 is'a perspective view'of a guide useful in effectingcontinuous stitching in accordance with the present invention.

Figs. 1 and 2 illustrate, as a preferred embodiment of the presentinvention, a bag 10 constructed from a blank of closely woven burlappreferably having a weight of at least 8 ounces per square yard forstrength and durability as well as for sufficient stiffness to permitthe formation of seams in accordance with the present invention. Asshown, bag 10 comprises a pair of superposed plies 12 and 14 havingopposed selvedges 16' and 18, which are designed not to unravel, andopposed cuts 20 and 22, by which the blank for the bag is separated fromthe remainder of a bolt. Selvedges 16 and 18 of the blank lie at theopen top and the closed bottom of the bag, respectively. Plies 12 and 14are integrally joined at 28. The peripheral portions of the blank atcuts 20 and ,22 are double reversely bent to form superposed fiaps 30and 32 and superposed lips 34 extending therefrom between the flaps andthe portions of the bag is turned inside out to present a finishedappearance.

The present invention thus provides a novel process of a 'few simplesteps for producing a novel fabric bag of great strength and durability.

Since certain changes may be made in the abovedescribed product andprocess without departing from the scope of the'invention hereininvolved, it is intended that all matter contained in the abovedescription and shown in the accompanying drawing be interpreted in w anillustrative and not in a limiting sense.

What is claimed is:

1. A bag constructed from a textile blank having opposed selvedges andopposed cuts, said bag comprising a pair of plies integrally joined at afold in said blank substantially midway between said cuts, the portionof at least one of said plies bordering at least one of said cuts beingreversely bent to form an outer flap, said outer flap being reverselybent to form a lip extending between said outer flap and portions ofsaid plies overlapped thereby, and stitching extending continuouslyalong said lip, said outer flap and said plies overlapped thereby, andthe portion of said plies bordering one of said selvedges joining saidouter flap and said lip to portions of said plies overlapped thereby andjoining aligned portions of said'plies bordering one of said selvedgestogether.

2. The bag of claim l, 'wherein the portion of the other of said pliesbordering the. other of saidcuts is rev'er'selybent to form aninnerfiap. a g V "3,. Thebag of claim '2 wherein .said stitching includes tworows," one joining .the flaps, lip and remainder of saidplies;'th'elother joining said flaps andsaidrernainder ofsa'idplieslfree of said lip. Q" v 4. The hag ofjelaim 3,whe'reinf the;extreniity of the innerflap is received between .saidfllip of the outerflap ands'a'id outer flap, and said stitchingincludes a rowin 'of'the''out'er' flap and saidremainder of said jplies.

"'5. The ,bag-of-claim 4 wherein said stitching includes arowrin'sequencej joining saidffiaps and Vsaid'remainder ofsaid plies. Va V I 6. A bag constructed'firom a textile blank having opposedselvedges'and opposed cuts, saidbag' comprising a pair of ,pliesintegrally joined atia fold invsaid blank substantially midway betweensaid cuts saidblankbe'ing composed of closely woven burlap having aweight of at least 8 ounces, the portion of at least one of saidplies'bordering at least one of said cuts being reversely bent to forman outer flap, said outer flap being reversely bent to form a lip.extending between said outer flap and portions of said plies overlappedthereby, and two rows of stitching each extending continuously alongsaid outer flap, said lip, portions of said "plies overlapped therebyand aligned portions of saidpliesbordering one of said selvedges, saidrows joining-saidmuter flap and said lip to pogtionsv of said pliesoverlapped thereby and; joining said aligned portions pf said pliesbordering one of said selvedges together. v sequencejoining saidouter'flap, said inner flap, .said'lip I ke'fereneesiCited in the fileof this patent

